Improvement in electric regulators for



Z Sheets-Sheet 1. J. SANGS'T'ER & wh s. enosvwon.

ELECTRIC REGULATORS FOR STEAM-ENGINES. No.171,86'9. v Patented Jan. 4, v1876.

a I e Flolllfi I v Ill admmm I r 3mm NJ'EYERS, PHOTO-LITNOGRAPHER, WASHXNGTON, D. C.

' 2.Sheets'-Sheet2.' J. SANGSTER & W.- S. GROSVENOIL ELECTRIC REGULATORS FOR STEAM-ENGINES. No.171,869 Patented Jam 1876.

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N. PETERS, PHOTOLITHOGRAPHER. WASHINGTON- D. C,

STATES JAMES SANGSTER AND WILLIAM s. GROSVENOR,OF 'BUFFALQNEW YORK.

IMPROVEMENT in ELECTRIC REGULATORS FOR, steam-rdoings;

Specification forming part of Letters Patent No. 171369, dated 'Janiiaiy' l, 187d; applicationfil d November 27, 1875. .l

To all whom it may concern:

Be it known that we, JAMES SANGSTER and WILLIAM S. GRosvENoR, both of the city of Buffalo, in the countyof' Erie and State of New York, have invented certain new and useful Improvements in Deyices for Controlling Steam-Engines or other Machinery from Distance,-which improvements are fully set forth in the following specification, reference being had to the accompanying drawings.

The'object of this invention is to afford the means for moving a valve, or for starting,re versing, or stopping steam or other engines from a distance, and so operating and controlling their movements as to avoid gen of catching on the center.

glhefirst part ofour invention cousist-s of one or more 'electro-magnets, having a recip rooating motion by means of a crank and connecting-rod, or other suitable connection with the engine, in combination with a movable armature and throttle or other valver I I I i 1n sauldrawlngs, Figure. ,l 183 sid the arrangement being such that, when an electrical current from a galvanic battery or an electro magnetic machine is completed with either one of the e lectro-inagnets, the an mature is attracted and hel d in close contact w th It, when its movement has brought it close enough for that purposefand thereby drawn in the direction of its motion, so that by a lever or other connection a valve may be opened or closed in either direction, while the fullpower of the magnet is obtained by the armature being held in close contact during the entire movement, or until the circuit is broken, the action of one magnet moving the lever or armature in one direction, and the other in the opposite direction. When the electrical circuit is broken, the armature remains inactive, leaving the valve stationary, or nearly so, in the position left by the magnet by which it was moved. V

The second part of our invention consists of an eccentric or other. equivalent device for producing a reciprocating movement, the elec-.

tro-magnets and their connections, the arma ture, and its connectingaleversleadmg to and for moving the valve, allarranged for oint operation, in combination with a crank for converting a rectilinear reciprocating movement into a rotary movement; the eccentric thedan- I and the valve moved as requiredonlywhen the crank has reached such a positionin its movement that it will not catcl j onthecenter eitherwhen stopping or reversing the engine, as will be more clearly hereinafter described. The third part ofv our invention consists 'of the movable electro magnets, the armature,

and its connections, in' combination .with a valve and auxiliary cylinder, for operatinga throttlevalve or for. moving "a. reversin -Unit.

"lheifourth part of-onrilrvention cons st the combination of the ordinaryhnlereversand unlockjug lever with an additional lever ingdevice for lifting the boltor notches in the'segmenhlthe arrangemen ingsuch that the link. maybe re versj the auxiliary cylinder withont Io king parts. 7

tion of our invention as applied and-arr vforreversinga steam-engine from-adi 1 by operating "the link 1Fi,,, 2',a.plan,or op view of the same 5 Fig. 3,:a section-through the-auxiliary cylinder for operating the link, also, a side elevation of the'linkrreverfsing le- Neifand the mechanism. for releasingfitgfro n the" segmentbefore' moving it and 4. w r e a ram sh n the erbm er of'ou'r inventiouiirpreventing-an en ne i'r' n catchin g on the center whilereversiir P n 1" i I; A, A represent the elect gpet are: arranged .liponaslideway, b.,' an a reciprocating movement from thefenginepr other moving machine bymeansof ti" nec ting rod oandec'c'ent c at. ,jTh

may be edju c m di Q o the-magnet, which is charged by circuitv with a galvanic battery or ts egn lent, \vill,-, by its motiomre'ach and ttract erma u eia d m e it stn th 1 engine-crankhas reached the point vhere 'moinentuuil ofthewhee will ,carr it )a cnterivhen stopping. the eng o L proper point for reversing when it 1s arranged for o1.)erating a link.

B represents the armature,

arranged to vijetunheated:witligthe auxiliary eylinderyG s m vetted from vilir 'ti g too fitl fib y are L The lever (J swi-ngs upen the joint F,'zu'ul is connected with the valve-stem fut the eyliuder G between the collars g-g--;--* t leave a little lost 111 tion between part of M (be em ts a segment fOl liuk'umtio ersing-ge tFignBQ It I) the aw "i, thel0ckingdev1ee.l ing it f on the hptehes K re knuwnlthat ,i'eql li resinofurtheudeseti Lrepresents eh zulflitienal rever 1 'ng-levo to be usedjiulcomh in io n with the even-sing; link Tot a steam provided ith a segment lllav' 5. note esfo lecking the eyersing-lever at zuihus points The lever d Mlaml piston b3 eahs Oftheemm ctiUg e ser bed.

The l ioli OE oiu t 1'1 veiitionis as follow he eceentlfic or other has reaeh own at Y; )Blg de ofuthe engiuerpis 869 i the ai row X! l with sulfieie nt fo its ljnovelneutjmst theeenter T e a by cbnipleting the ailunite 6 battery at't; and charging the eleetro-megnetA, Whieh ad -va-nees-in the direction of the arrow A Fig 2, far enough to reach it e ar matu eB uloperatetheval s long asthektim l1 'eldby t'h'e elep V current it will partakeof the movements 6t he eleetro-magnet; but the lostmotieu he euflicient steam oh the; opposite piston i eylimler G to cushionit. It is obvious theta, ehehge of electrieal euit frpurt to I; will chargeele tro-mtguet A4 and reverse the when ithefleleut rl eun e t is brokel y l midwaybetween t t the ar statioual ygor nely s o lipoll it.

I; auxilieryeyli u ler r theleveru t.- a mum steam-engine, {steep e l igine for controlling-thee 'e th reof, electr 

